JP2005299324A - Waterproofing structure for roof tile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproofing structure for a roof tile which is improved not only in waterproofness of the roof tile but also in moldability and transportation efficiency of the same. <P>SOLUTION: According to the waterproofing structure for the roof tile, a recess 19 is formed along a flashing 17 formed at an edge of a front surface of the roof tile 12, and the front surface of the roof tile 12 near the flashing 17 is lowered. Thus a tip portion of the flashing 17 is elevated with respect to the front surface of the roof tile 12 (i.e. a bottom surface of the recess 19) near the flashing 17, and therefore the waterproofness of the roof tile is improved. Further compared with the case where the height from a rear surface of the roof tile 12 to the tip portion of the flashing 17 is increased, the depth of a cavity for molding the flashing 17 is made shallower. As a result, the moldability of the roof tile (flashing 17) is improved, and the dimension of the roof tiles superposed on each other and aligned in a row for shipment is reduced, which increases the number of the roof tiles 12 to be mounted on a single transportation pallet, to thereby reduce transportation cost of the roof tiles 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a waterproof structure for a roof tile in which a water return is formed on the front side edge of the roof tile.

  The conventional waterproof structure for roof tiles is that the roof tile overlaps by forming a water return on the front edge of the roof tile that is the lower side of the roof tile overlap when the roof tile is installed. Even if rainwater enters the gap, the rainwater is blocked by returning water to prevent the rainwater from entering the back side of the roof tile (the roof base side).

  However, when rain and wind are strong due to typhoons, etc., rainwater blown into the gaps between the overlapping parts of the roof tiles may enter the back side of the roof tiles (the base side of the roof) beyond the water return. There was a problem that sex could not be obtained.

Therefore, for example, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-54566), the water return is increased by increasing the height dimension from the back surface of the roof tile to the tip of the water return. Some of them are designed to improve waterproofness.
JP 2000-54566 A (2nd page, FIG. 2 etc.)

  However, in the waterproof structure of the above-mentioned patent document 1, since the height dimension from the back surface of the roof tile to the tip of the water return is increased, the following problem occurs.

  When the height dimension from the back surface of the roof tile to the tip of the water return is increased, the depth dimension of the cavity for forming the water return in the mold for forming the roof tile is increased accordingly. For this reason, when forming a roof tile, it becomes difficult for molding materials (clay etc.) to reach the front-end | tip part of the cavity which shape | molds a water return, and a water return becomes difficult to shape | mold.

  In general, when shipping roof tiles from a factory or the like, the roof tiles are stacked and transported on a pallet in a bundled state. However, if the height from the back of the roof tile to the tip of the water return is increased, the size when the roof tiles are stacked in one row increases, so that the roof can be placed on one transport pallet. The number of tiles decreases, and the cost of transporting roof tiles increases.

  The present invention has been made in consideration of these circumstances. Therefore, the object of the present invention is to satisfy the demands for improving the moldability and reducing the transportation cost while increasing the water return and improving the waterproof property. The object is to provide a waterproof structure for roof tiles.

  In order to achieve the above object, the waterproof structure for a roof tile according to claim 1 of the present invention is such that a water return is formed on the front side edge of the roof tile, and the other surface of the roof tile along the water return. It forms a hollow part that is more recessed. In this structure, since the surface of the roof tile around the water return can be lowered by forming a recess along the water return, the height dimension from the back of the roof tile to the tip of the water return is increased. Even without this, the tip of the water return can be made higher with respect to the surface of the roof tile around the water return (that is, the bottom surface of the recess), and the waterproofness can be improved.

  Moreover, compared to the case where the height from the back of the roof tile to the tip of the water return is increased, the depth of the cavity for forming the water return can be reduced, so that the roof tile (water return) is formed. Can be improved. In addition, since it is not necessary to increase the height dimension from the back surface of the roof tile to the tip of the water return, the dimension when the roof tiles are stacked in one row at the time of shipment can be reduced, and one piece of transport is carried out. The number of roof tiles that can be placed on the pallet can be increased, and the transportation cost of the roof tile can be reduced.

  In this case, as in claim 2, the recess is preferably formed such that when the roof tile is constructed, the bottom surface of the recess is inclined downward toward the center of the roof tile. If it does in this way, even if the rainwater blocked by the water return flows into the hollow part, the rainwater can be flowed toward the center of the roof tile, and the rainwater can be prevented from collecting in the hollow part.

  In addition, as described in claim 3, the recess is preferably formed along the water return formed on the right edge or the left edge of the roof tile. In this way, when the roof tiles are constructed, the water return placed in the gaps between the overlapping parts in the lateral direction of the roof tiles can be increased, so the waterproofness of the gaps in the overlapping parts in the lateral direction of the roof tiles can be increased. Can be improved.

  Moreover, you may make it form a hollow part along the water return formed in the upper edge part of a roof tile like Claim 4. In this way, when the roof tiles are constructed, the water return placed in the gaps between the overlapping parts in the vertical direction of the roof tiles can be increased, so the waterproofness of the gaps in the overlapping parts in the vertical direction of the roof tiles. Can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 4, roof tiles 11 extending in the direction of the roof (perpendicular to the inclination direction of the roof) are fixed at predetermined intervals by nails, screws, and the like. The roof tiles 12 are attached in order from the lower part to the upper part of the roof, and are attached in order from the left part to the right part of the roof.

  Each roof tile 12 is arranged such that the lower side portion of the roof tile 12 overlaps the upper side portion of the roof tile 12 arranged below the roof tile 12 and the left side portion of the roof tile 12 is arranged on the left side. The roof tile 12 is arranged so as to overlap the right side of the roof tile 12, and is usually fixed by inserting a fastener 14 such as a nail or a screw into the fixing hole 13 formed in the upper portion of the roof roof tile 12. ing. In some cases, it is not fixed by a fastener 14 such as a nail or a screw.

  In addition, cutout portions 15 and 16 are formed in the lower right corner portion and the upper left corner portion of each roof tile 12, and the cutout portion 15 in the lower right corner portion of each roof tile 12 is inclined. The roof tile 12 disposed below is engaged and supported by the notch 16 at the upper left corner of the roof tile 12.

Next, the waterproof structure of the roof tile 12 will be described with reference to FIGS.
As shown in FIG. 1, a water return 17 is formed on the front right edge of each roof tile 12 so as to protrude upward, and a water return 18 is provided upward on the front upper edge of each roof tile 12. It is formed to protrude.

  As shown in FIG. 2, when the roof tile 12 is constructed, in the portion overlapping in the lateral direction of the roof tile 12, the water return 17 formed on the right side edge portion of the roof tile 12 which is the lower side is on the upper side. The roof tile 12 is covered with the left side. Furthermore, the recessed part 19 is formed so that it may become depressed rather than the other surface of the roof tile 12 along the water return 17 formed in the front side right edge part of the roof tile 12. As shown in FIG. Thereby, the surface of the roof tile 12 around the water return 17 is lowered, and the tip of the water return 17 is made higher than the surface of the roof tile 12 around the water return 17 (that is, the bottom surface of the recess 19). ing. Further, the recess 19 is formed so that the bottom surface of the recess 19 is inclined downward toward the center of the roof tile 12 when the roof tile 12 is constructed.

  On the other hand, as shown in FIG. 3, when the roof tile 12 is constructed, in the portion overlapping in the vertical direction of the roof tile 12, the water return 18 formed on the upper side edge of the roof tile 12 that is on the lower side, It is covered with the lower part of the roof tile 12 that is on the upper side. Furthermore, the recessed part 20 is formed so that it may become depressed rather than the other surface of the roof tile 12 along the water return 18 formed in the front side upper edge part of the roof tile 12. As shown in FIG. Thereby, the surface of the roof tile 12 around the water return 18 is lowered, and the tip of the water return 18 is made higher than the surface of the roof tile 12 around the water return 18 (that is, the bottom surface of the recess 20). ing. Moreover, this hollow part 20 is formed so that when the roof tile 12 is constructed, the bottom surface of the hollow part 20 is inclined downward toward the center of the roof tile 12.

  In the present embodiment described above, since the depressions 19 and 20 are formed along the water return 17 and 18, the surface of the roof tile 12 around the water return 17 and 18 can be lowered. The front ends of the water return portions 17 and 18 can be raised with respect to the surface of the roof tile 12 around 18 (that is, the bottom surfaces of the recessed portions 19 and 20), and the waterproofness can be improved.

  Moreover, since the depth dimension of the cavity for forming the water return 17, 18 can be made shallower than when the height dimension from the back surface of the roof tile to the tip of the water return is increased, the roof tile 12 (water The moldability of the reversing 17, 18) can be improved. In addition, since it is not necessary to increase the height dimension from the back surface of the roof tile to the tip of the water return, the dimension when the roof tiles 12 are stacked in one row at the time of shipment can be reduced. The number of roof tiles 12 that can be placed on the transportation pallet can be increased, and the transportation cost of the roof tiles 12 can be reduced.

Further, in this embodiment, when the roof tile 12 is constructed, the bottom surfaces of the recessed portions 19 and 20 are inclined downward toward the center of the roof tile 12, so that they are blocked by water return 17 and 18. Even if the rainwater thus produced flows into the depressions 19 and 20, the rainwater can flow toward the center of the roof tile 12, and the rainwater can be prevented from accumulating in the depressions 19 and 20.
However, the construction may be such that when the roof tile 12 is constructed, the bottom surfaces of the recessed portions 19 and 20 do not incline downward toward the center of the roof tile 12.

  Furthermore, in the present embodiment, a recess 19 is formed along the water return 17 on the right edge of the roof tile 12, and a recess 20 is formed along the water return 18 on the upper edge of the roof tile 12. Thus, when the roof tile 12 is constructed, the water return 17 disposed in the gap between the overlapping portions in the lateral direction of the roof tile 12 and the water return 18 disposed in the gap between the overlapping portions in the vertical direction of the roof tile 12. It is possible to increase both of the above, and it is possible to improve the waterproofness of both the gap between the overlapping portions in the lateral direction of the roof tile 12 and the gap between the overlapping portions in the vertical direction of the roof tile 12.

However, you may make it form a hollow part along only one of the water return 17 of the right edge part of the roof tile 12, and the water return 18 of an upper edge part.
In addition, when forming the water return on the left edge portion of the roof tile 12, a recessed portion may be formed along the water return of the left edge portion of the roof tile 12.

  In addition, the present invention can be implemented with various changes without departing from the scope of the invention, such as changing the shape of the water return and the depression, etc.

It is a top view of the roof tile in one Example of this invention. It is a longitudinal cross-sectional view which shows the waterproof structure of the part which overlaps with the horizontal direction of a roof tile. It is a longitudinal cross-sectional view which shows the waterproof structure of the part which overlaps in the vertical direction of a roof tile. It is a perspective view which shows the attachment structure of a roof tile.

Explanation of symbols

  12 ... roof tile, 13 ... fixing hole, 15, 16 ... notch, 17, 18 ... water return, 19, 20 ... depression

Claims (4)

In the waterproof structure of the roof tile that formed a water return on the front edge of the roof tile,
A waterproof structure for a roof tile, wherein a recess is formed along the water return that is recessed from the other surface of the roof tile.   2. The roof according to claim 1, wherein the recess is formed such that when the roof tile is constructed, a bottom surface of the recess is inclined downward toward a center direction of the roof tile. Waterproof construction of tiles.   The waterproof structure for a roof tile according to claim 1 or 2, wherein the recess is formed along a water return formed at a right edge or a left edge of the roof tile.   The waterproof structure for a roof tile according to any one of claims 1 to 3, wherein the recess is formed along a water return formed at an upper edge of the roof tile.

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